var XMLHttpRequestObject = false;
if(window.XMLHttpRequest) // FF
    XMLHttpRequestObject = new XMLHttpRequest();
else if(window.ActiveXObject) // IE
    XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
else
    alert("Ajax is not supported");

function getData(dataSource, projName)
{
    if(XMLHttpRequestObject)
    {
        XMLHttpRequestObject.open("POST", dataSource);
        XMLHttpRequestObject.setRequestHeader('Content-Type',
            'application/x-www-form-urlencoded');
        XMLHttpRequestObject.onreadystatechange = function() {
            if(XMLHttpRequestObject.readyState == 4 &&
               XMLHttpRequestObject.status == 200)
            {
                var results = XMLHttpRequestObject.responseText;
                document.getElementById("currProjInfo").innerHTML = results;
            }
        }

        XMLHttpRequestObject.send("currProj=" + projName);
    }
    else
        alert("Ajax is not supported");
}

function fillComment()
{
   var XMLHttpRequestObject = false;
   if (window.XMLHttpRequest)   //Firefox way to create object
        XMLHttpRequestObject = new XMLHttpRequest();
   else if (window.ActiveXObject) //IE way to create object
        XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
   else
        alert("Ajax not supported");
   var obj = document.getElementById('comProj');
   var proj = document.getElementById('selProj');
   proj = proj.value;
   
   if (XMLHttpRequestObject)
   {
      XMLHttpRequestObject.open("POST", "fillComment.php");
      XMLHttpRequestObject.setRequestHeader('Content-Type',
         'application/x-www-form-urlencoded');
      XMLHttpRequestObject.onreadystatechange = function()
      {
         if (XMLHttpRequestObject.readyState == 4 &&
            XMLHttpRequestObject.status == 200)
            var res = XMLHttpRequestObject.responseText;
            obj.innerHTML = res;            
      }
      XMLHttpRequestObject.send('project='+proj);
   } else
      alert("Ajax not supported");
}